Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

Struct template convertible_to

boost::proto::convertible_to — For matching terminals that are convertible to a type.

Synopsis

// In header: <boost/proto/matches.hpp>

template<typename T> 
struct convertible_to {
};

Description

Use proto::convertible_to<> to match a terminal that is convertible to some type. For example, the grammar proto::terminal<proto::convertible_to<int> > will match any terminal whose argument is convertible to an integer.